diff --git a/sonic-slave-buster/Dockerfile.j2 b/sonic-slave-buster/Dockerfile.j2
index 3e8dad321c..ba38091873 100644
--- a/sonic-slave-buster/Dockerfile.j2
+++ b/sonic-slave-buster/Dockerfile.j2
@@ -422,8 +422,8 @@ RUN pip2 install j2cli==0.3.10
 # For sonic-mgmt-framework
 RUN pip2 install "PyYAML==5.4.1"
 RUN pip3 install "PyYAML==5.4.1"
-RUN pip2 install "lxml==4.6.2"
-RUN pip3 install "lxml==4.6.2"
+RUN pip2 install "lxml==4.6.5"
+RUN pip3 install "lxml==4.6.5"
 
 # For sonic-platform-common testing
 RUN pip3 install redis==3.5.3
diff --git a/sonic-slave-stretch/Dockerfile.j2 b/sonic-slave-stretch/Dockerfile.j2
index 2acaaf6c9c..1cef023b7a 100644
--- a/sonic-slave-stretch/Dockerfile.j2
+++ b/sonic-slave-stretch/Dockerfile.j2
@@ -349,8 +349,8 @@ RUN pip3 install mockredispy==2.9.3
 # For sonic-mgmt-framework
 RUN pip2 install "PyYAML==5.3.1"
 RUN pip3 install "PyYAML==5.3.1"
-RUN pip2 install "lxml==4.6.2"
-RUN pip3 install "lxml==4.6.2"
+RUN pip2 install "lxml==4.6.5"
+RUN pip3 install "lxml==4.6.5"
 
 
 # For sonic-platform-common testing